I have a new Hovabator 16002N with a fan. It's not an expensive bator but I figured it was a step up from my LG still air. Plus I wanted a second bator for hatching. Trouble is I cant get the temp up high enough. It's staying aroud 98 degrees. I keep turning the knob but the temp does not go up. I have 3 thermometers in there and they all read the same. Is this typical for this model? I'm ready to move my hatch back to the LG.